Columbia University – UofL News Tue, 21 Apr 2026 13:56:44 +0000 en-US hourly 1 New robotic device to boost balance in spinal cord injury patients at UofL /section/science-and-tech/new-robotic-device-to-boost-balance-in-spinal-cord-injury-patients-at-uofl/ /section/science-and-tech/new-robotic-device-to-boost-balance-in-spinal-cord-injury-patients-at-uofl/#respond Mon, 24 Oct 2016 18:54:31 +0000 http://uoflnews.com/?p=33427 Spinal cord injury researchers at the University of Louisville pioneered activity-based interventions that have helped individuals with spinal cord injury improve mobility. The addition of epidural stimulation to the lumbosacral spinal cord has allowed individuals with SCI to stand without assistance.

Susan Harkema, PhD, who leads this research at UofL, Claudia Angeli, PhD, Enrico Rejc, PhD, and Sunil Agrawal, PhD, an engineer at Columbia University, have won a $5 million grant to develop a robotic device that will aid individuals with SCI further by helping them regain balance. The Tethered Pelvic Assist Device will provide stimulation and feedback to aid in the recovery of balance, and will be integrated with activity-based training and epidural stimulation research at UofL.

Susan Harkema, PhD

Harkema, Angeli and Rejc, faculty members in the Department of Neurological Surgery at UofL, are working with Agrawal, professor of mechanical engineering and of rehabilitation and regenerative medicine at Columbia Engineering, to develop TPAD. Agrawal specializes in the development of novel robotic devices and interfaces that help patients retrain their movements.

The project has won a 5-year, $5 million grant from the New York State Spinal Cord Injury Board. The project also includes Joel Stein, chair of the Department of Rehabilitation and Regenerative Medicine, and Ferne Pomerantz, MD, assistant professor in the department at Columbia University Medical Center.

Claudia Angeli, Ph.D.
Claudia Angeli, PhD

TPAD is a wearable, lightweight, cable-driven device that can be programmed to provide motion cues to the pelvis and corrective forces to stabilize it. It consists of a pelvic belt with multiple cables connected to motors, a real-time motion capture system, and a real-time controller to regulate the tensions in the cables. The UofL researchers will incorporate the device into the training of SCI patients during standing.

“Our stand and step training, combined with epidural stimulation, have shown success in enabling individuals with SCI regain the ability to stand. We hope the integration of the TPAD device will help these individuals with balance, further improving their functional ability and quality of life,” said Harkema, who is also director of Research at the Frazier Rehab Institute, part of KentuckyOne Health.

Enrico Rejc, PhD

In their work with the , the UofL researchers have studied the effects of stand and step training along with epidural stimulation in adults with spinal cord injury. Epidural stimulation involves surgically implanting an electrode array over the lower spinal cord to activate the neural circuits.

 

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North Korean defector captivates UofL crowd /post/uofltoday/north-korean-defector-speaks-at-uofl/ /post/uofltoday/north-korean-defector-speaks-at-uofl/#respond Fri, 16 Sep 2016 19:36:15 +0000 http://uoflnews.com/?p=32729 Yeonmi Park, a 22-year-old Columbia University student who is one of the few people to survive fleeing North Korea, received a standing ovation at the University of Louisville after giving a moving talk describing her escape.

When she crossed a river into China with her mother at the age of 13, what she was most afraid of was being forgotten. “If I didn’t survive … you wouldn’t know I existed in this world,” she told the hushed, standing-room-only audience in Strickler Hall’s Middleton Auditorium on Thursday.

“They have feelings. They have dreams,” Park said of the North Korean people, her soft voice breaking.

Park’s talk was the first of the 2016 Fall Speakers Series for the John H. Schnatter Center for Free Enterprise in UofL’s College of Business. She later signed copies of her book, “In Order to Live: My Journey to Freedom.”

Now an economics major at Columbia, Park said she learned about supply and demand from buying and selling on the black market in North Korea. Asked what she wants to do when she graduates, she laughed and said she first has to pass pre-calculus, but that she hopes to someday earn an MBA or PhD.

Park spoke candidly about being sold into sexual slavery in China, her value being higher than her mother’s because at the time Park “was young and a virgin.”

She also talked of learning about simple things, such as going into a restroom – itself a novelty – and discovering scented toilet paper decorated with flowers: She was so surprised she tucked some away in her pocket.

Electricity, scarce in North Korea, was a luxury: Living near the border with China, she would wonder why China had lights at night and North Korea was dark. She did not know how many countries were in the world, and learned mathematics by doing math problems that counted the number of “American bastards” or “Japanese imperialists” killed by North Koreans.

Her introduction to the United States came from repeatedly watching “Friends” reruns in South Korea. Inspired to go to New York City, she was accepted to Columbia, where she then wrote her book. She now studies and travels the country giving talks to spread the word about the human rights atrocities taking place in North Korea.

“It’s happening right now,” she said. “What have you done for us?” 

Yeonmi Park with Stephan Gohmann, director of the John H. Schnatter Center for Free Enterprise at UofL.

The Schnatter Center Fall Speaker Series, “Asia: From Communism to Capitalism,” will continue Oct. 10 with author Frank Dikotter, who will discuss the Chinese Revolution. On Nov. 14, author Nin Wang will discuss “How China Became Capitalist.” Both talks are at 4:30 p.m. in the PNC Horn Auditorium in the college’s Harry Frazier Hall. Find out more at .

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